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gpio: raspberrypi-exp: mark OF related data as maybe unused
The driver can be compile tested with !CONFIG_OF making certain data unused: drivers/gpio/gpio-raspberrypi-exp.c:237:34: error: ‘rpi_exp_gpio_ids’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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@ -234,7 +234,7 @@ static int rpi_exp_gpio_probe(struct platform_device *pdev)
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return devm_gpiochip_add_data(dev, &rpi_gpio->gc, rpi_gpio);
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}
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static const struct of_device_id rpi_exp_gpio_ids[] = {
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static const struct of_device_id rpi_exp_gpio_ids[] __maybe_unused = {
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{ .compatible = "raspberrypi,firmware-gpio" },
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{ }
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};
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